Gasoline fuel tank vents should terminate __________.

Correct Answer: Option C — above or outside the hull

Gasoline vapors are heavier than air and highly flammable. 46 CFR mandates that fuel tank vents terminate outside the hull, well away from any openings, air intakes, or ignition sources, to prevent the accumulation of explosive vapors within the vessel's enclosed spaces, engine compartments, or below-deck areas.